Educational appliance.



Patented Dec. 2,' i902; C. E. WHEELAND. EDUCATIONAL APPLI'ANGE.

"Application med Apr. 1s, 190m 2 Sheets-Sheet L (No Nudel.)

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Unirse vSierras PATENT' Oirincfn.l

CHARLES-E. IVHEELAND,.OF SEATTLE, WASHINGTON, ASSIGNOR TO VVHEELAND NOVELTY COMPANY, OF SEATTLE, WASHINGTON, A CORPORATION OF WASHINGTON.

EDUCATIONAL APPLIANCE.

SPECIFICATION forming part of Letters Patent No. 715,224, dated December 2, 1902. Y

Application filed April 18, 1901. Serial No. 56,496. (No model.) i

To all whom, it may concern:

Be it known that I, CHARLES ELMER VHEELAND, a citizen of the United States of America, and a resident of Seattle, in the county of King and State of Washington,have invented certain new and useful Improvements in Educational Appliances, of which the following is a specification.

My invention relates to improvements in apparatus adapted to display exhibits.

Among numerous desirable objects attained bythis invention and readily comprehended from the accompanying drawings and following specifications is simple and efficient means for successively displaying a changing variety of exhibits without necessitating premeditation or forethought as to their arrangement, like mechanism cooperatively included with said means to render the apparatus positive' in operation, and preferred structural features incidentally developed in the embodiment of the objects.

With reference to the aforementioned'drawings, included as a part of this specification, and in which like characters of reference designate corresponding parts throughout the several views, Figure l isa plan View of the apparatus with portions of the box and showcase broken away and one of the hubs'of the carrier indicated in diametrical section. Fig. 2 is an elevation of the right-hand end of Fig. l with the end'of the box removed and a portion of the operating-lever broken away and in which bold lines indicate the relative positions of the various elements when a series of exhibits are displayed, and broken lines indicate the positions of said parts as the drivers are about to act to impel the carrier. Fig. 3 is a perspective view of one of the hubs of the carrier removed and indicated without guides and with a respective detent and driver in relative relation; and Fig. 4 is a side elevation, on reduced scale, of the apparatus with a series of exhibits indicated in projected position in the show-case.

Inasmuch as the primary object of this invention is to render it possible to display exhibits without prenieditation or forethought as `to their' order, the character of the ex-l 5o hibit is immaterial, and it may. consist of cards characterized in any suitable manner or comprise silhouettes conforming to any desired outline or articles of any desired class.

As now considered the apparatus includes a suitable frame l, a supporting medium,as 2, movably mounted in the frame, exhibits 3, projectively mounted on the medium, mechanism by which said medium is moved,means for stopping the same, means to projectaseries of exhibits into displaying position, and means to retract the projected series.

The frame 1 is constructed in any desirable manner; but as now considered it consists of end pieces, as 4 and 5,' substantially identical in form, and strut-rods 6, connecting said ends, wherebythe 'frameis conveniently made to support various elements of the apparatus, as understood from the following:

The medium 2 comprehends any suitable device adapted to movably support exhibits and, as now considered, to also carry same during the replacement thereof, and in the present instance comprises a movable carrier therefor, which preferably embodies a multiplicity of hubs, as 7, to the number of five. This carrieris preferably rendered movable by mounting said hubs for rotary action on a suitable axis, as a sli-aft 8, which is disposed parallel the side edges of the frame and is fixed at the extremities to the end pieces 4 and 5 midway the said edges, and the said hubs are preferably suitably mounted to move independently, following simultaneous impulse, so as to insure thorough mixing of the exhibits during replacement, as understood from the following: Each of the hubs '7 is preferably made to conform to the shape of a drum, and the heads thereof are apertured to receive the shaft 8, and the rim is conveniently1 provided with a plurality of slots 9, Fig. 3, adapted to receive the heads of suitable catches employed to lock the exhibits to the carrier, as will be hereinafter set forth.

Included with the carrier are suitable means for supporting the retracted exhibits during movements of the carrier and comprising in the present embodiment guides, as 10, also adapted to steady said exhibits as they are moved to and from said carrier and when IOO . proper.

resting in displaying position. These guides, as now included, number ten for each hub, carrying a like plurality of exhibits and spaced equally and disposed rad-ially, and each guide consists of a pair of suitable rods, as 1l, which are rigidly iixed to a respective hub.

In the presentinstance the exhibits comprise suitable cards individually characterized on each face alike, so as to be read from either side of the apparatus, and each card on each hub of the carrier is characterized with a single one of a predetermined series of digits, as those embraced between the figures 0 and 9. These exhibits are conveniently mounted on the guides lO by suitable crossheads, as l2, to which they are detachably fixed by clasps, as 13, made of pliable metal iixed to said heads and inserted through the lower portion of the cards and then bent to clasp the same. Each cross-head l2 is conveniently formed to slidably embrace the rods comprising.,r its respective guide, so as to be reciprocative thereon for projection and retraction of the exhibit with respect to the carrier. When lying in retracted positions, the exhibits are held or locked to the carrier by suitable means adapted to secure them in said positions as the carrier is moved and adapted to permit of displacement, as desired, to project certain of the exhibits. In the present instances said securing means consist of suitable catches, as 14, one of which is pivoted to each cross-head and forced by a spring 15 to engage with the edge of a respective slot 9 as the head is brought to retracted position, and thereby ret-ain same against centrifugal force, induced by rotation of the carrier, and until the catch is tripped to release the head for projection ot' the exhibit.

As heretofore stated, the respective hubs ot' the carrier are preferably mounted so as to have independent movement following simultaneous impulse to insure variation in the `relative positions of the exhibits on the respective hubs. Incidental to this preference the hubs are conveniently separated by suitable sleeves I6, placed on the shaft 8 between the respective hubs and side pieces of the frame, and have suitable lugs, as i7, fixed to a peripheral iiange 18, whichis adapted to accommodate said lugs at desired separation irrespective the diameter of the hub The lugs 17 are ot' like plurality to the guides and likewise spaced and are fixed to the outer side faces of the respective iianges 1S, where they lie responsive to a threefold duty, being involved in the impelling, stopping, and (logging of the carrier, rand are consequently cooperatively related with the means for performing these functions, Fig. 3. These means are conveniently rendered automatically operative by movements of a suitable lever, as I9, also suitably arranged to relatively control the' action of operative means for projecting a series of eX- hibits and likewise means for retracting same.

2O indicates a box adapted to inclose the apparatus and having a suitable show-case, as 2l, xed thereto at a convenient point to receive the exhibits when they are projected from the carrier. This case is adapted to display the exhibits while aording protection therefor and is conveniently made with side Walls 22, composed of glass or like transparentmaterial, disposed at right angles to the body of the box 20, with suitable separation to accommodate the exhibits therebetween and which are projected through a suitable slot, as 23, formed in the wall of the box between said Walls, and a suitable top 22' and end walls 24 are included to complete the construction of said case.

In the present instance the exhibits are projected and retracted by the same means,which are conveniently rendered reciprocatively operative for these purposes and include a rock-bar 25, disposed parallel the axis of the carrier in one upper corner of the frame and conveniently pivoted to the end pieces 4 and 5. Fixed to the rock-bar are laterally-projecting arms 26,placed between the hubs,with the free end of each operativelj7 related to the cross-heads on a single hub of the carrier and normally resting with a relative crosshead supported thereby in displaying or projected position, as promoted by the action of a suitable motive spring 27, which is conveniently connected to the rock-bar and frame 11 to advance the arms to project the exhibits and hold them in displaying positions and also permit the arms to be returned to retract the exhibits.

As now considered the means for reciprocating the exhibits are preferably made t0 move them vertically and laterally with respect to the carrier and are rendered retractively operative primarily to impelling the carrier so as to return the displayed exhibits for movement thereby and projectively operative after the carrier is again brought to rest to insure relative position of a succeeding series for projection into the show-case 2l.

28 is a lug xed to the cross-head l2, with suitable projection from one side edge thereof. 29 is a similar lug fixed to the catch 14 and ,having like projection from the head, and 30 is a laterally-projecting leaf on a respective arm 26, adapted for contact with the irst said lug as the arm is swung to retract the head and insure operation of the catch to lock the head to the carrier and likewise to contact the latter lug to disengage said catch and project and hold said head. When the said arm is in retracted position, the leaf 30 thereon rests between the paths of said lugs during movement of the carrier, that when the carrier is brought to rest the arm is in position to unlock and project the relative head as promoted by action of the spring 27, Fig. 2.

The carrier 2 is conveniently impelled by a IOC IZO

'wai-dly, when each driver will impact a lug on a respectivehub and force the .carrier to rotate and pass below the path of movement in advance of the succeeding lug, Where they are retained to permit of continued operation of the carrier involving independent move- I ment of each hub.

When desired to stop the carrier, the drivers 31 are swung by a reverse movement of the base 32 and brought against the lugs on the revolving hubs, when the free extremities of each driver will engage a respective lug and check momentum of the respective hub, followed bya slight reverse movement thereof as promoted by the drivers return to initial position, Where the end of each driver will lie in opposition to a respective lug to oppose forward movement of the carrier until again impelled by impact of the drivers, Fig. 3.

The carrier is conveniently brought to rest and dogged by a series of suitable operative detente, as 32', each of which is adapted t0 dog a respective hub3and is suitably formed to contact at a relative time with one of the lugs 17 on said hub in opposition to the reverse movement given thereto by a respective driver 3l as it acts to stop the same. Each of the said detents is conveniently made of plate metal and is preferably provided with a strike-lug 33, adapted to receive the impact of a respective lug 17. This strike-lug is con- -veniently formed in substantiallyV shape, so

as to enter between a. pair of the lugs 17 and to thereby rotative-ly adjust the respective hub as the detent is operated to dog the same and insure alinement of the carrier and proper position of the respective exhibits for projection. As no1 included the detents 32 are formed at the free ends of reciprocative arms,

34, which are mounted on a rock-bar 35, at right angles to its center of movement, and a suitable notch 33 is conveniently formed at the base of each strike-lug 33 to receive a lug 17 after final 'adjustment of the respective hub by the strike-lug, and thereby serve to secure the carrier during projection and retraction of the exhibits. The rock-bar 35 is preferably placed beneath the base of the drivers 3l and disposed parallel thereto and is conveniently pivotcd to the end pieces of the frame l, so as to bring the detents into operative relation to the carrier, with the impactfaces of the strike-lugs opposing reverse rotations of the respective hubs during primary retract-ive movement and While the ends of the driversY 31- lie in opposition to forward movement of said hubs.

In accordance with the foregoing it will be understood that the present embodiment of the apparatus com prehends correlative opera' tions of the respective mechanisms for impelling and stopping the carrier and-for projecting and retracting a. series of the exhibits. The operations of these mechanisms are preferably automatically involved with the movements of the lever 19, which is adapted to conveniently. operate the apparatus to place and display exhibits, and in conformity with these objects this lever is coperatively connected with the several said operative mechanisms, as will be understood from the following: The lever 19 is conveniently fulcrumed tothe side piece 4 adjacent the rear edge'of the frame 1 by a suitable pivot 36, fixed to the frame adjacent the pivots of the base 32 and the rock-bar 35, and its movements are` limited by suitable lugs 38 and 39, Xed at desirable points adjacent the front edge of the frame to determine the initial and advanced positions of the lever, and a suitable spring, as 40, is conveniently attached to the said frame and lever to insure return of the said lever to initial position.

41 isasuitable stem erected on the operatinglever 19, substantially at right angles thereto and adapted to operatively engage said lever With a suitable lever 42Which is fixed to the rock-bar 25, carrying the arms 26. The free end of this stem is preferably formed with suitable prongs, as 44, disposed at a slight angle to the center of the stem and adapted to embrace a stud 43, fixed to the lever 42 at a comparatively short radius with reference tol the respective radiusA of 'said stem, and

thereby effect full movement of said lever conjointly with a primary movement of the operating-lever 19. A Wiper in the form of a pin 45 is conveniently fixed to the stem 41 below the prongs so as to slide upon a toe 46, fixed to the lever42 adjacent its free end, as the stud 43 disengages from said prongs as the operating-lever is advanced, and thereby hold the arms 26 in retracted position by in-` creased levcrage during final advance of the operating-lever to impel the carrier and during primary reverse action of said lever, thus allowing the detents to be advanced to dog the carrier during said reverse action of the operating-lever occurring previously to the advance of the arms 2 6 to project the exhibits.

Reference character 47indicates asuitable lever fixed to the rock-bar r35 and intermittently operatively connected to the lever 19 bya suitable stud 48, which is fixed to the latter at comparatively short radius inthe path of movement of the former, so thatthe detents 32 will be retracted d uringiinal movement of the operating-.lever and prior/to the movement of the drivers/31. A suitable slot,

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as 49, is. conveniently formed in the operat` pressed, and thereby latch the detents against undue movement by impact of the lever operating the drivers, as hereinafter set forth, and also connect the lever 47 to the operatinglever for simultaneous reverse by the spring 40.

50 indicates a suitable lever fixed to the base 32 of the driver and operated to impel the same by a spring 51, which is attached to a lug 53 on said lever and to a pin 52, fixed to the lever 47. This spring is placed under extreme tension by securing the first said lever from movement by suitable means, as a gravity-pawl 55, while the latter lever is advanced to retract the detents when said pawl is conveniently tripped, and the spring is then free to swing the lever 50 to the lever 47 and impel the drivers to operate the carriers by said movement. The pawl 55 is conveniently pivoted to the side piece 4, so as to engage by force of gravity with a suitable stud 56 on the lever 50 as the said lever is returned to initial position, and. is preferably provided with a shoulder 57 to receive the impact of said stud and is formed with an inclined surface 5S at the free end adapted for the engagement of a suitable trip 58, fixed on the lever 47, whereby said lever is made to disengage the pawl from the stud 56 as it reaches advanced position.

60 is a suitable gravity lock-bar adapted to secure the detents from retraction by rebounding action of the carrier when brought to rest. This bar is conveniently pivoted to the end piece 4 and has a V-shaped notch 63 in one edge adapted to receive a stud 62 on the lever 47 when said lever lies in initial position, and a pin 61 is suitably fixed to the operating-lever to press said bar to engage the stud as the said levers are returned. Below the relative normal position of the pin 61 the width of the bar 60 is reduced to accommodate the movement of said pin as both levers are depressed, and the studs 62 act on the lower incline of the notch to force the bar to move, as promoted by iinal advance of the operating-lever following the primary Pmovement thereof to retract the exhibits.

When desired to stop the carrier, the op- @rating-lever 19 is permitted to return, as promoted by the-retractingspring 40, which action will first stop the carrier by bringing the drivers to contact the lugs 17, when the carrier will be given a slight reverse action l by the final movement of said drivers as the detents are advanced and act to arrest the carrier simultaneously with the return action of the gravity-pawl 55 to lock the lever 50 and as the drivers come to rest with their ends opposed to relative lugs on the several hubs of the carrier. This occurs sim ultaneously with the action of the lock-bar 60, as forced bythe pin 61 to engage the stud 63 on the said operating-lever, and thereby secure the detents 32 against retractive action by rebounds of the carrier as it is brought to rest, and thus insure the position of exhibits for advancement by the arms 26.

Granting display positions to a series of exhibits an operation of the apparatus to replace same occurs as follows: The operatinglever 19 is pressed to advancement and during primary movement swings the arms 26 to retract the displayed exhibits and force the catches on the respective cross-heads to lock same to the carrier, followed by a slight retraction of said arms by the spring 27, as permitted by the incline at which the shoe 46 is placed. As the lever is still further advanced it comes in contact with the stud 48 and forces the lever 47 to move, which causes the stud 62 to throw out the lock-bar 60, as permitted by the advanced position of the pin 61, and the stud 48 enters the slot 49 as the detents 32' are retracted by further movement of the lever 47. During flnal advance movement of the operating-lever the trip 59 engages and moves the pawl 55, when the spring 5l acts to bring the lever 50 to the lever 47 and impel the drivers 3l, and thereby rotate the carrier. Afterdue time has elapsed the operating-lever is released for return action, whereupon the spring 40, acting through the stud 48 and lever 47, retracts the lever 50 and causes the drivers to first stop the carrier, followed by a reverse movement and final dogging thereof by the detents 32 and locking actions of the pawl 55 and bar 60, Ywhen the final return action of the operating-lever allows the arms 26 to advance, unlock the replaced exhibits, and project same into displaying position, as promoted by action of the spring 27.

From the foregoing it will be understood that the apparatus operates automatically throughout to repeatedly replace series of exhibits varying in assortment and that the variety included in each succeeding series is undeterminable, and consequently premeditation is not required to provide a continuously-changeable series.

The utility of the device for educational purposes is apparent, as it affords means for displaying characterized exhibits in practically endless variety and reduces the labor of selecting and displaying numbers, colors, pictures, or the like to students in testing their knowledge or instructing them. In the present embodiment, where the apparatus is shown with figures on the exhibits, it will be seen that succeeding numbers of various denominations can be displayed for instruction without requiring forethought to select number and effort to inscribe or transmit them and, furthermore, that the characters on the exhibits can be read from either face and viewed by instructor and pupils alike at their respective side of the apparatus.

Having thus described my invention,what I claim as new, and desire to secure by Letters Patent, is-

l. In an appliance of the nature indicated;

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the combination with a frame, a plurality ot' movably -supported exhibits and means to move the same; carried by said frame, said exhibits being adapted to move vertically up, Ward when theyare in a perpendicular to any horizontal plane; of means tofdetachably hold said exhibits on the moving means and means for releasing exhibits.

2,. In an appliance ot" the nature indicated; the combination With a frame, a plurality of verticallymovable exhibits and a movable carrier; of means for detachably holding said exhibits to the carrier and operative exhibit detaching andattaching means. l

3. In an appliance of the nature indicated; the combination with a frame, a plurality ot' vertically-movable exhibits ,and a rotatable carrier; of means for detachabl y holding said exhibits to the carrier, means for releasing exhibits when said exhibits are in a vertical position in the frame and means for sustaining the released exhibits. I

et. In an appliance of the nature indicated; the combination with a frame, an exhibitcarrier composed of independently-movable parts and a driver, vertically-adjustable exhibits carried by the carrier and adapted to move upward when vertically disposed above the carrier; of means for stopping the carrier with said parts disposed in a relative position.

5. In an appliance of the nature indicated; the combination with a frame, a carrier composed of independently-movable parts, a plurality of vertically-movable exhibits distributed on the carrier and a driver; of operable carrier-stopping mechanism adapted for disposing exhibits in promiscuous series at predetermined points when the exhibits are in a vertical line above the carrier.

6. In an appliance ofthe nature indicated; the combination with a frame, a carrier cornposed of independen Bly-rotatable parts, a plu-i rality of vertically-movable exhibits distributed on the carrier paris and a driver for intermittently impelling the carrier; of altermately-operable carrier-stopping mechanism adapted for stopping said carrier with a promiscuous one of the'exhibits on each of the sevelxalpartsdisposed at predetermined alined points.

7. In an appliance of. the nature indicated; the combination with a frame, a movable carrier, aplurality ofvertically-movable exhibits adjustably mounted on the carrier and intermittently-operative carrier-actuating means; of means for stopping said carrier with a promiscuous exhibit disposed at a positive predetermined point for adjustment.

8. In an appliance of the natureindicated; the combination with a frame, a movable carrier, a plurality of relatively adjustable exhibits moved by said carrier, and intermittently-operative carrier-actuating means; of means for stopping said carrier with a series of said exhibits resting at positive predeter-` mined points for adj ustment, said exhibits be-.

ing vertically above 'the carrier when visible.

9. In an appliance of the nature indicated; the combination with a frame, a rotatable carrier, a plurality of radially-disposed exhibits adjustably mounted on the carrier and intermittently-operative carrier-actuating means; of mechanism operatively associated with said actuating means for automatically stopping said carrier with the exhibits resting atpredetermined tixedpoints, said exhibits being vertically .above the carrier When visible.

l0. In an appliance of the nature indicated; the combination with'a frame, a movable carrier, a plurality of adj ustably-mounted exhibits movably mounted on the carrier and intermittently operative carrier actuating means; of means for bringing said carrier to rest- With a reversing impulse so that all exhibits vertically above the carrier are impelled upward to be visible.

' l1. In an appliance of the nature indicated; the combination with a frame and a plurality of verticallymovable supported exhibits; of spring-actuated means for projectinga series of exhibits from the normal path of Amovement of the plurality.

l2. In an appliance ofthe nature indicated; the combination With a frame and a plurality of movably-supported exhibits; of springactuated means for projecting a series of exhibits from Vthe normal path of movement-of the plurality and means for retracting the projected series.

13. Inan appliance of the nature indicated;

of'movably-supported exhibits; ot' springactuated vmechanismy for projecting a series of said exhibits from the normal path of movement, mechanism for retracting the projected series and means relative to said projecting mechanism for moving the plurality of exhibits to promiscuously place a succeeding series for projection.

14. In an appliance ofthe nature indicated;

the combination with afraine and a plurality of movablysupported -exhibits; of springactuated mechanism for 'projectingaud retracting series of said exhibits relatively to the field of normal position of the plurality vand to promiscuously replace said series from the plurality when retracted.

l5. In an appliance of the nature indicated; the combination Witha frame and a plurality of Inovablysupported exhibits; ot' spring- I actuated mechanism for projecting a series of said exhibits from the field of normal position of the plurality and for retracting the same and means operatively related with said re.- tractive means for automaticallymovingsaid plurality to replace said series. i

16. In an appliance of the natureindicated;

the combination with a frame and a plurality,

of movably-supported exhibits; of springactuated means for successively assembling changeable series of said exhibits and altervna'tely'projecting 'and retracting thejassembled series.

17. In an appliance of the/nature indicated IOO the combination with aframe andaplurality the combination With a frame and a plurality of movably-supported exhibits; of springactuated means for successively assembling promiscuous series of said exhibits and for projecting and retracting each series as assembled. Y

18. In an appliance of the nature indicated; the combination with a frame and a plurality of exhibits; of means for movably supporting the exhibits, spring-actuated means for assembling promiscuous series thereof and means to project and retract each series relatively to assembled position.

19.' In an appliance of the nature indicated; the combination witha frame and a plurality of movably-supported exhibits; of springactuated means for advancing series of exhibits from the plurality, means to support each series advanced, means to retract same and means to assemble a succeeding series.

20. In an appliance of the nature indicated; the combination with a frame and a plurality of movableexhibits; of spring-actuated means related to said exhibits for projecting series thereof from the field of normal position and for retracting same and means operatively related to said plurality1 for replacing the retracted series.

21. In an appliance of the nature indicated; the combination with a frame, acarrier composed of independentlyrotatable parts, a

drivel' and a plurality of vertically-movable exhibits; of means to detachably secure a number of -the exhibits to each carrier part in relative order; means for stopping the carrier with a series of said exhibits disposed at a predetermined point and spring-actuated means operatively related to the securing means of said series for releasing the same and projecting the exhibits one at a time.

22. In an appliance of the nature indicated; the combination'with a frame, a carrier composed of independently-rotatable parts, a driver for impelling the carrier and a plurality of vertically-movable exhibits for each carrier part; of means to detachably secure exhibits in relative order on each carrier part, means for stopping the carrier with a series of said exhibits disposed at a predetermined point, means operatively related to said exhibit-securing means for releasing the disposed series and spring-actuated means for projecting and'retracting said series.

23. In an appliance of the natureindicated; the combination With a frame, a carrier composed of independently-rotatable parts, a driver, and a plurality of exhibits for each carrier part; of means for detachably holding each exhibit to the carrier, means for stopping the carrier with a series of said exhibits disposed at a predetermined point, means operatively related to said exhibit -securing means for releasing the disposed series,spring actuated means for projecting the series, means to lhold same in projected position for display and means for retracting and reattaching said series to the carrier.

24. In an appliance of the nature indicated; the combination with a frame, a carrier composed of independently-rotatable parts, a driver for impelling each part and a plurality of exhibits disposed equidistant on respective parts; of independently-operative catches for holding individual exhibits to the carrier, means for stopping the carrier with series of said exhibits alined at a predetermined point and springactuated means, means operatively related to the catches of said series for releasing same and adapted for simultaneously projecting and sustaining and for 'retracting and reattaching said series.

25. In an appliance ofthe nature indicated; the combination with a frame and a plurality of vertical exhibits movably supported therein; of a show-case juxtaposed to said frame, mechanism operatively associated with said exhibits for placing and intermixingly displacing succeeding promiscuous series thereof relative to said case and spring.- actuated means for projecting and retracting each series placed, the projecting operation taking place When the exhibits are at rest and the retracting operation as they again move.

26. In an appliance of the nature indicated;

the combination with a frame, rotatable carrier and vertical exhibits movable on the carrier; of a show-case disposed radially to said carrier in juxtaposition thereto, mechanism operatively associated with said carrier for placing exhibits in relation to said case and spring-actuated mechanism operatively related to exhibits when placed for projecting and retracting the same radially.

27. In an appliance of the nature indicated; the combination With a frame, a rotatable carrier and vertically-movable exhibits normally test-ing on the carrier; of a vertical show-case disposed radially to said carrierin juxtaposition thereto, intermittently-operative carrier impelling and stopping mechanism adapted for placing exhibits relative to saidcase and exhibit projecting and retracting mechanism operatively connected with said carrier-controlling mechanism and With exhibits as placed, said exhibits being projected as the carrier stops and retracted as the carrier moves again.

28. In an appliance of the nature indicated; the combination, with an inclosed frame, an opening in the inclosure and a plurality of vertically-movable two-faced exhibits supported on the frame; of spring-actuated mechanism associated with said plurality for assembling exhibits relatively to said opening and for automatically projecting and retracting the exhibits assembled.

29. In an appliance of the nature indicated; the combination with an inclosed frame an opening in the inclosure and a plurality of vertically-movable two-faced exhibits supported in the frame; of a laterally-projecting show-case over said opening and mechanism associated with said exhibits for assembling successive series thereof relatively to said IOO IIO

case and for projecting and retracting each series.

30. In an appliance of the nature indicated; the combination with an inclosed frame, an opening` in the inclosnre and a plurality of vertically-movable two-faced exhibits supported in the frame; of a laterally-projecting show-case over said opening and mechanism operatively associated with said exhibits for assemblingsuccessive series thereof relatively to said case and alternately spring-actuated mechanism operatively related to the exhibits assembled for project-ing and retracting the same.

31. In an appliance of the nature indicated; the combination with an inclosed frame, an opening in the inclosu-re and a plurality of ve rtically-movable two-faced exhibits mounted in said frame; ot' a show-case over said opening, mechanism operatively associated with said exhibits for placing and displacing succeeding series thereof relatively to said case, spring-actuated means for projecting each series to the case as placed, means for sustaining the projected series and means for retract-ing same for replacemen t.

32. In an appliance ofthe nature indicated; the combination with a frame, carrier and verticallymovable exhibits reciprocatively mounted on the carrier; of spring-actuated means for advancing and retracting exhibits and for sustaining them when in advanced position. i

33. In an appliance of the nature indicated; the combination With a frame, movable carrier, an intermittently-operative driver and verticallymovable exhibits reciprocatively mounted on the carrier; means for reciprocating exhibits and means operatively connected with said driver and exhibit-reciprocatingspring-actuated means for first advancing and retracting exhibits and then actuating the driver.

3l. In au appliance of thenatureindicated; the combination With a frame, carrier, exhibits, exhibitadjusting mechanism, and main operating-lever; of means operatively connecting said lever and adjusting mechanism for operating the adjusting mechanism during primary advance and tinal retractive action of said lever, and adapted to render said mechanism substantially inoperative during final advancing and primary retractive action of said lever.

35. In an appliance of the nature indicated;

the combination with a frame, carrier, ex.- hibits; of a main operating-lever, exhibit-adjusting mechanism including a spring-advanced lever having a pin radial thereon and 'a toe at a greater radius,.prongs on the main lever for normally engaging said pin and av mechanism operatively connected with said lever for alternately im pelling and stopping the carrier respective to reverse actions of the lever and other mechanism, also operatively connected With said lever to adjust correlative exhibits during advance and retractive action thereof and occurring primary to impelling and' after stopping said carrier.

37'. In an appliance of the nature indicated; the combination with a frame, a carrier therein composed of separated independently-rotatable parts having equidistantlyspaced radial guides and corresponding impact-lugs, exhibit-'carrying heads slidable on the guides and independently-operable catches normally securing the heads; of reciprocative carrier impact and checking mechanism and associa'ted carrier-alining means related to said lugs, catch operating and head adjusting mechanism related to respective alined heads and means for relatively operating said impacting and checking 'and adjusting mechanisms.

38. In an appliance of the nature described; the combination with a frame, a rotatable carrier, vertically movable exhibits adjustably mounted on the carrier, and a main operating-lever; of a latched spring-actuated carrier-driver, a movable detent normally locking the carrier, a spring-pressed exhibitadjusting means and connections whereby said lever is made to iirst actuate the exhibitadjusting means, retract said driver when depressed and to stop said carrier and then to reactuate said adjusting means when retracted.

Signed by me at Seattle, lVashington, this 28th day of February, 1901.

CHARLES E. WHEELAND.

Witnesses:

A. F. NICHOLS, A. H. NUNN.

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